Question

Choose which of the following are true statements regarding matrices:

a) A matrix with 14 elements is impossible
b) If two rows are identical in a matrix then there are infinitely many solutions
c) A 3-by-2 matrix and a 2-by-3 matrix have the same number of elements
d) An acceptable role operation is to switch columns

Answer 1

C A 3-by-2 matrix and a 2-by-3 matrix have the same number of elements because on the periodic table it show the both combinations as elements... so 3+2= 5 and 2+3=5 so they both have 5 elements!

Hope this helps! B-)

Answer 2

b) If two rows are identical in a matrix then there are infinitely many solutions
c) A 3-by-2 matrix and a 2-by-3 matrix have the same number of elements